<template>
    <div class="app-container">
      <!--课程预览-->
      <div class="ccInfo">
        <img :src="coursePublish.cover">
        <div class="main">
          <h2>{{ coursePublish.title }}</h2>
          <p class="gray"><span>共{{ coursePublish.lessonNum }}课时</span></p>
          <p><span>所属分类：{{ coursePublish.subjectParentTitle }} — {{ coursePublish.subjectTitle }}</span></p>
          <p>课程讲师：{{ coursePublish.teacherName }}</p>
          <h3 class="red">￥{{ coursePublish.price }}</h3>
        </div>
      </div>
      <div style="text-align:center">
        <el-button type="primary" @click="prev()">上一步</el-button>
        <el-button :disabled="publishBtnDisabled" type="primary" @click="publish()">发布课程</el-button>
      </div>
    </div>
  </template>
  
  <script>
  import courseApi from '@/api/vod/course'
  
  export default {
    data() {
      return {
        publishBtnDisabled: false, // 按钮是否禁用
        coursePublish: {}
      }
    },
    created() {
      if (this.$parent.courseId) {
        this.fetchCoursePublishById(this.$parent.courseId)
      }
    },
    methods: {
      // 获取课程发布信息
      fetchCoursePublishById(id) {
        courseApi.getCoursePublishById(id).then(response => {
          this.coursePublish = response.data
        })
      },
      // 上一步
      prev() {
        this.$parent.active = 1
      },
      // 下一步
      publish() {
        this.publishBtnDisabled = true
        courseApi.publishCourseById(this.$parent.courseId).then(response => {
          this.$parent.active = 3
          this.$message.success(response.message)
          this.$router.push({ path: '/vodcourse/course/list' })
        })
      }
    }
  }
  </script>
  <style scoped>
  .ccInfo {
      background: #f5f5f5;
      padding: 20px;
      overflow: hidden;
      border: 1px dashed #DDD;
      margin-bottom: 40px;
      position: relative;
  }
  .ccInfo img {
      background: #d6d6d6;
      width: 500px;
      height: 278px;
      display: block;
      float: left;
      border: none;
  }
  .ccInfo .main {
      margin-left: 520px;
  }
  .ccInfo .main h2 {
      font-size: 28px;
      margin-bottom: 30px;
      line-height: 1;
      font-weight: normal;
  }
  .ccInfo .main p {
      margin-bottom: 10px;
      word-wrap: break-word;
      line-height: 24px;
      max-height: 48px;
      overflow: hidden;
  }
  .ccInfo .main p {
      margin-bottom: 10px;
      word-wrap: break-word;
      line-height: 24px;
      max-height: 48px;
      overflow: hidden;
  }
  .ccInfo .main h3 {
      left: 540px;
      bottom: 20px;
      line-height: 1;
      font-size: 28px;
      color: #d32f24;
      font-weight: normal;
      position: absolute;
  }
  </style>